PRELIMINARY INFORMATION 2 V Dual-Mode WCDMA & Dual-Band GSM/DCS Switch • • • GND Functional Schematic ANT1 • GSM Power Handling with +2.0 V Control Voltage Low Power Consumption. Less than 1µA current in Receive mode. Integrated Decoder. Leadless 4 x 4mm FQFP -N, 20 Pin Package. Low Insertion Loss, 0.3 dB in GSM Transmit mode. GND • WCDMA Features Rev 1.2 GND VER 1. SW-488 0.5 – 2.0 GHz ANT2 DRX GND DRXS GRX GND DTX GND Decoder GND The SW-488 is fabricated using a new 0.5-micron gate length GaAs pHEMT process. The process features full chip passivation for increased performance and reliability. This switch is designed for Dual Mode WCDMA/GSM/DCS handsets where the phone needs to be able to simultaneously receive a WCDMA and GSM signal. PRXON TXS BS GND The M/A-COM SW-488 is a GaAs monolithic switch in a low cost, FQFP-N, surface mount plastic package. The SW-488 is ideally suited for applications where very low power consumption, high power handling, and low cost are required. The SW-488 includes an integrated decoder. The switch offers GSM power handling with below +2.5V control voltage. The supply voltage VDD should be connected to the highest available voltage. VDD GTX Description Ordering Information Part Number Description SW-488TR SW-488 on 1000 Piece Tape and Reel SW-488TR-3000 SW-488 on 3000 Piece Tape and Reel SW-488SMB SW-488 Sample Test Board * If specific reel size is required, consult factory for part number assignment The Prelim inary Specifications Data Sheet Contains Typical Electrical Specifications Which May Change Prior to Final Introduction. M/A-COM, Inc. North America: Tel. (800) 366-2266 Fax (800) 618-8883 1 ♦ Asia/Pacific: Tel. +81 3 3263-8761 Fax +81 3 3263-8769 ♦ Europe: Tel. +44 (1344) 869-595 Fax +44 (1344) 300-020 2V Control, Dual -Mode WCDMA & Dual-Band GSM/DCS Tx/Rx Switch SW-488 V1.2 ELECTRICAL CHARACTERISTICS: Test Conditions: VDD = 2.5V, Vctrl =2.0V, TA = +25°C Mode ANT2 -> GSM RX ANT1 -> UMTS Tx ANT1 -> UMTS Rx Specifications Insertion Loss Insertion Loss Insertion Loss Isolation ANT1 to DCS Tx Isolation ANT2 to GSM Tx Isolation UMTS to DCS Rx Isolation UMTS to GSM Rx Isolation UMTS to GSM Tx Isolation DCS Tx to DCS Rx Isolation DCS Tx to GSM Rx Isolation GSM Tx to DCS Rx Isolation GSM Tx to GSM Rx Freq. (MHz) 925 -960 1920-1980 2110-2170 1710-1785 880 – 915 1920 –1980 1920 –1980 1920 –1980 1710 – 1785 1710 – 1785 880 – 915 880 - 915 Units dB dB dB dB dB dB dB dB dB dB dB dB Min. 0.54 0.65 0.7 22 15 30 30 30 30 30 30 15 Typ. 0.6 0.7 0.75 22 15 30 30 30 30 30 30 15 Max. 0.7 0.9 0.95 22 15 30 30 30 30 30 30 15 ANT1 -> DCS RX Insertion Loss Isolation ANT1 to DCS Tx Isolation ANT2 to GSM Tx Isolation DCS Tx to DCS Rx Isolation DCS Tx to GSM Rx Isolation GSM Tx to DCS Rx Isolation GSM Tx to GSM Rx 1805 -1880 1710 – 1785 880 – 915 1710 – 1785 1710 – 1785 880 – 915 880 - 915 dB dB dB dB dB dB dB 0.74 20 10 20 30 30 30 0.8 20 10 20 30 30 30 0.9 20 10 20 30 30 30 ANT2 -> GSM TX Insertion Loss Isolation GSM Tx to UMTS Isolation GSM Tx to DCS Rx Isolation GSM Tx to GSM Rx Isolation DCS Tx to DCS Rx Isolation DCS Tx to GSM Rx 880 – 915 880 – 915 880 – 915 880 – 915 1710 – 1785 1710 – 1785 dB dB dB dB dB dB 0.24 30 30 25 30 30 0.3 30 30 25 30 30 0.4 30 30 25 30 30 ANT1 -> DCS TX Insertion Loss Isolation DCS Tx to UMTS Isolation DCS Tx to DCS Rx Isolation DCS Tx to GSM Rx Isolation GSM Tx to DCS Rx Isolation GSM Tx to GSM Rx 1710 –1785 1710 –1785 1710 –1785 1710 –1785 880 – 915 880 – 915 dB dB dB dB dB dB 0.54 20 30 30 30 30 0.6 20 30 30 30 30 0.7 20 30 30 30 30 2nd Harmonics 3rd Harmonics Supply Voltage High Control Voltages Low Control Voltages See attached data See attached data dBc dBc Volts Volts Volts -84 -79 2.0 2.0 -0.2 -80 -76 2.5 2.5 0 -70 -65 4.0 4.0 0.2 1. 2. DC blocking capacitors are required on all RF and shunt ports. All impedances are 50 ohms The Preliminary Specifications Data Sheet Contains Typical Electrical Specifications Which May Change Prior to Final Introduction. M/A-COM, Inc. North America: Tel. (800) 366-2266 Fax (800) 618-8883 2 ♦ Asia/Pacific: Tel. +81 3 3263-8761 Fax +81 3 3263-8769 ♦ Europe: Tel. +44 (1344) 869-595 Fax +44 (1344) 300-020 2V Control, Dual -Mode WCDMA & Dual-Band GSM/DCS Tx/Rx Switch SW-488 V1.2 Pin Configuration Block Diagram GND RF Ground 3 GRX GSM Rx Port 4 GND RF Ground 5 GTX GSM Tx Port 6 GND Decoder GND 7 VDD Decoder Vdd 8 BS Control 1 GND GSM ANT Port ANT1 ANT2 2 GND 1 GND Description WCDMA ANT2 9 TXS Control 2 10 PRXON Control 3 11 GND RF Ground 12 DCS TX DCS Tx Port 13 GND RF Ground 14 DCSRX_S DCS Rx Shunt 15 DCSRX DCS Rx Port 16 GND RF Ground 17 ANT 1 WCDMA/DCS ANT 18 GND RF Ground 19 WCDMA WCDMA Port 20 GND RF Ground 21 GND Paddle DRX GND DRXS GRX GND DTX GND Decoder GND PRXON TXS GND GTX BS Pin Name VDD Pin No. Truth Table BS TXS PRXON 0 0 0 0 1 1 1 1 0 0 0 0 Logic Level VLo “0”= VHi “1”= MODE GSM RX – ANT2 WCDMA – ANT1 GSM TX – ANT2 DCS TX – ANT1 DCS RX – ANT1 Voltage Level 0V 2.5 V The Preliminary Specifications Data Sheet Contains Typical Electrical Specifications Which May Change Prior to Final Introduction. M/A-COM, Inc. North America: Tel. (800) 366-2266 Fax (800) 618-8883 3 ♦ Asia/Pacific: Tel. +81 3 3263-8761 Fax +81 3 3263-8769 ♦ Europe: Tel. +44 (1344) 869-595 Fax +44 (1344) 300-020 2V Control, Dual -Mode WCDMA & Dual-Band GSM/DCS Tx/Rx Switch SW-488 V1.2 Sample Board Schematic WCDMA ANT1 C7 C8 C1 C6 ANT2 DRX C5 C2 GRX C4 DTX C3 Decoder GTX VDD BS TXS PRXON External Circuitry Parts List (Note: Values of external elements not final) Ref. Designation C1 C2 C3 C4 C5 C6 C7 C8 Value 22 pF 22 pF 22 pF 22 pF 4.7 pF 22 pF 22 pF 22 pF Purpose DC Block DC Block DC Block DC Block RF Shunt DC Block DC Block DC Block The Preliminary Specifications Data Sheet Contains Typical Electrical Specifications Which May Change Prior to Final Introduction. M/A-COM, Inc. North America: Tel. (800) 366-2266 Fax (800) 618-8883 4 ♦ Asia/Pacific: Tel. +81 3 3263-8761 Fax +81 3 3263-8769 ♦ Europe: Tel. +44 (1344) 869-595 Fax +44 (1344) 300-020 2V Control, Dual -Mode WCDMA & Dual-Band GSM/DCS Tx/Rx Switch SW-488 V1.2 SW-488 Harmonics at the GSM TX Port versus Pin Vdd=2.5V; Vcontrol=2.5V 0 -10 -20 -30 dBm GSM 2H GSM 3H -40 -50 -60 -70 28 29 30 31 32 33 34 35 Pin (dBm) SW-488 Harmonics at the DCS TX Port versus Pin Vdd=2.5V; Vcontrol=2.5V 0 -10 -20 -30 dBm DCS 2H DCS 3H -40 -50 -60 -70 26 27 28 29 30 31 32 33 Pin(dBm) SW-488 Harmonics at the WCDMA Port versus Pin Vdd=2.5V; Vcontrol=2.5V 0 -10 -20 -30 dBm WCDMA 2H WCDMA 3H -40 -50 -60 -70 24 25 26 27 28 29 30 Pin(dBm) The Preliminary Specifications Data Sheet Contains Typical Electrical Specifications Which May Change Prior to Final Introduction. M/A-COM, Inc. North America: Tel. (800) 366-2266 Fax (800) 618-8883 5 ♦ Asia/Pacific: Tel. +81 3 3263-8761 Fax +81 3 3263-8769 ♦ Europe: Tel. +44 (1344) 869-595 Fax +44 (1344) 300-020 2V Control, Dual -Mode WCDMA & Dual-Band GSM/DCS Tx/Rx Switch SW-488 V1.2 4 mm FQFP-N, 20-Lead A A2 D A3 D1 E A1 E1 20 x b D2 e E2 4xe L e 4xe Dimension Measurement (mm) Min. Nom. Max. A 0.80 0.90 1.00 A1 0 0.02 0.05 A2 0 0.65 1.00 A3 b 0.25 ref. 0.18 0.23 0.30 D 4.00 basic D1 3.75 basic D2 0.75 1.70 2.25 e 0.50 basic E 4.00 basic E1 3.75 basic E2 0.75 1.70 2.25 L 0.35 0.55 0.75 Note: See JEDEC MO-220A VGGD-1 for additional dimensional and tolerance information The Preliminary Specifications Data Sheet Contains Typical Electrical Specifications Which May Change Prior to Final Introduction. M/A-COM, Inc. North America: Tel. (800) 366-2266 Fax (800) 618-8883 6 ♦ Asia/Pacific: Tel. +81 3 3263-8761 Fax +81 3 3263-8769 ♦ Europe: Tel. +44 (1344) 869-595 Fax +44 (1344) 300-020